Order now at http://www.stevespanglerscience.com/search?sSearch=gravi-goo&sClass=Pro… Everyone knows that water can't flow uphill. Not so fast... when this goo is poured back and forth between two beakers, Gravi-Goo mysteriously siphons from the higher held beaker to the lower one. Maybe water can flow uphill. You have to play with the stuff to believe it.
Grade Level Grades 6-12